I'm seeing different behaviour between code that looks to be the same.
It obviously isn't the same, so I've misunderstood something:
>>> log_names
('access', 'varnish')
>>> log_dates
('20091105', '20091106')
>>> logs = itertools.chain.from_iterable(glob.glob('%sded*/%s*%s.gz' %
>>> (source_dir, log, date)) for log in log_names for date in log_dates)
>>> for log in logs:
... print log
...
/Volumes/UNTITLED 1/ded1/access_log-20091105.gz
/Volumes/UNTITLED 1/ded2/access_log-20091105.gz
/Volumes/UNTITLED 1/ded3/access_log-20091105.gz
/Volumes/UNTITLED 1/ded1/access_log-20091106.gz
/Volumes/UNTITLED 1/ded2/access_log-20091106.gz
/Volumes/UNTITLED 1/ded3/access_log-20091106.gz
/Volumes/UNTITLED 1/ded1/varnishncsa.log-20091105.gz
/Volumes/UNTITLED 1/ded2/varnishncsa.log-20091105.gz
/Volumes/UNTITLED 1/ded3/varnishncsa.log-20091105.gz
/Volumes/UNTITLED 1/ded1/varnishncsa.log-20091106.gz
/Volumes/UNTITLED 1/ded2/varnishncsa.log-20091106.gz
/Volumes/UNTITLED 1/ded3/varnishncsa.log-20091106.gz
However:
for date in log_dates:
for log in log_names:
logs = itertools.chain.from_iterable(glob.glob('%sded*/%s*%s.gz'
% (source_dir, log, date)))
Gives me one character at a time when I iterate over logs.
Why is this?
And how, then, can I make the first more readable?
S.
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